EP1595614B1 - Stanzmaschine - Google Patents

Stanzmaschine Download PDF

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Publication number
EP1595614B1
EP1595614B1 EP05076041A EP05076041A EP1595614B1 EP 1595614 B1 EP1595614 B1 EP 1595614B1 EP 05076041 A EP05076041 A EP 05076041A EP 05076041 A EP05076041 A EP 05076041A EP 1595614 B1 EP1595614 B1 EP 1595614B1
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EP
European Patent Office
Prior art keywords
punch
groups
rotation
die
relative
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
Application number
EP05076041A
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English (en)
French (fr)
Other versions
EP1595614A1 (de
Inventor
D. Inaki Xabier Aizpurua Zendoia
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Goiti SCL
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Goiti SCL
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Publication date
Application filed by Goiti SCL filed Critical Goiti SCL
Publication of EP1595614A1 publication Critical patent/EP1595614A1/de
Application granted granted Critical
Publication of EP1595614B1 publication Critical patent/EP1595614B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D28/00—Shaping by press-cutting; Perforating
    • B21D28/02—Punching blanks or articles with or without obtaining scrap; Notching
    • B21D28/12—Punching using rotatable carriers

Definitions

  • the present invention relates to punching machines used for the perforation of sheets and, in particular, to machines of this type which operate under automatic control and which comprise various tools that can be selected to produce different types of perforations in the application plates, by providing thus, relative to these features, improvements that simplify the realization of the machine and endow it with greater accuracy of operation.
  • automatic punching machines used for punching sheet metal generally consist of two facing turrets, one of which, the punch holder, being located in the upper part and the other, the die holder, being located in the lower part, said turrets being animated with synchronous rotational movements and provided with a plurality of punch-die stations that can selectively be placed in a working position by rotating the turrets relative to a firing pin punches for punching.
  • Each station consists of a punch holder group disposed in the upper turret and a die holder group located in the lower turret so that the pair of two groups constitutes a punching station.
  • Each punch-holder group consists of a set of punches and each die-holder group is likewise formed of a set of dies, so that each punch and its corresponding die form a set of die tools. punching.
  • the punch stations allow the sets of punch-die tools to occupy different fixed radial orientations, defined by keying. This positioning by keying restricts the number of positions and requires the frequent stop of the machine to change the positions and / or the tools and thus offer other possibilities of work.
  • the punching machines mentioned have claws for holding and driving the punching plates, which claws are likely to change their position to adapt to the different dimensions of the punching sheets, a locking device being provided for this purpose. effect for releasing said claws so as to move them to the corresponding positions and to fix them in place, said locking device being traditionally a device with manual operation or requiring, at most, a direct rotary control automatism of reduced precision.
  • the document DE 8702211U discloses a punching machine having rotating turrets incorporating punch holders and die holders, and control devices for controlling the position of the punch and die holder groups.
  • the pinion By the meshing of a pinion rotated by a motor, the pinion can be uncoupled by the rotation thereof around a remote axis.
  • the present invention provides improvements that provide advantageous constructive and functional features to the above-mentioned automatic punching machines, thereby giving rise to an improved embodiment over prior art machines of this type.
  • a punching machine according to claim 1 is provided.
  • the machine has respective punch and die-holder turrets located in relative eccentric position with respect to each other, the facing position corresponding to the working area, whereas, in the opposite zone, the lower die-holder turret is exposed with respect to the upper turret punch holder, which facilitates the exchange of the dies.
  • the turrets may incorporate fixed groups of punches and dies, or rotatable selection groups (automatic indexing), to define the punching stations, respective control devices being provided relative to the rotary selection groups of the punches and dies.
  • respective control devices being provided relative to the rotary selection groups of the punches and dies.
  • each of which includes an actuator incorporated on a support arranged in pivoting assembly hinged to a U-shaped part, a linear pusher being also provided relative to said tilting support for pushing it by making it tilt to ensure the coupling and decoupling of the transmission meshing corresponding motor actuator relative to the group to be actuated.
  • a machine in which the eccentric position of the turrets carrying the punches and dies facilitates the loading and unloading of the punching plates, insofar as the means for controlling the rotation of the groups of punches and dies (automatic indexing). ) define a gyroscopic arrangement, with a completely rigid assembly, which makes it possible to ensure adjustments and guarantee operation with absolute precision.
  • the punch and multiple die-bearing groups further incorporate a rotational locking device occupying a zero position, by means of a spring-loaded ball-shaped device, which enables an angular reference position of said spring to be accurately set. groups, to ensure automatic control of punch-matrix sets to be used.
  • the striker intended to strike the punches for punching is of the rotary and radially orientable type, a rotation actuator being connected thereto by means of a simple belt transmission or the like, thus determining a mounting arrangement very simple, which can be controlled automatically alone or in combination with the rotation of multiple punch-matrix-bearing groups, thus allowing to establish a rotation combined for the selection of work punches to use.
  • the holding and driving claws of the plates to be perforated incorporate a blocking system formed of an axle and a rotary actuator able to move axially to couple with said axis and to decouple from it, the axis being linked by means of a transmission meshing with a threaded element that can make a small displacement to block or release the corresponding claw.
  • the object of the invention relates to a punching machine of the type used to perforate sheets in a machining process, by means of punches having the desired shapes and corresponding dies arranged in opposition, comprising respective turrets (1 and 2), in which the punches and dies are respectively incorporated in reciprocal assemblies forming selective punching stations, said turrets (1 and 2) being provided with respective synchronized motor actuators (3 and 4), in order to ensure the rotary control for the purpose of placing the punching to be used in each case in a specific working position.
  • the turrets (1 and 2) are preferably superposed in an eccentric position with respect to each other, as shown in FIGS. 1 and 7, so that in the region (5) ) corresponding to the working position of the two turrets (1 and 2), these are opposite, but that in the opposite zone (6), the lower turret (2) is exposed relative to the upper turret (1) .
  • Said relative arrangement of the turrets (1 and 2) facilitates the exchange of the dies, insofar as the punching plates are arranged between the two turrets (1 and 2), which makes it possible to easily insert and extract the sheets. by the zone (6) opposite to the punching zone (5).
  • the groups (7 and 8) of punches and corresponding dies may be fixed, the selection of the punches to be used is effected by rotation of the turrets (1 and 2) until the groups (7 and 8) in which the punch and the die to be used reach the working zone (5), the striker (9) being then rotated to the corresponding angular position on the punch (10) which is to perform the punching, in accordance with the selection mode represented by the sequence of Figures 10A-10D.
  • the striker (9) is associated, by means of a belt drive or the like (11), with a rotary actuator (12) , as illustrated in Figures 8 and 9.
  • the rotary actuator (12) is a motor whose axis incorporates a pulley (42) into which the belt (11) engages to transmit the rotational movement to a toothed belt (43) integral with the striker body (9). so as to transform the rotation of the motor (12) into a rotation of the striker (9).
  • the punch and die groups may also be incorporated into respective rotary supports (13 and 14) so that the selection of the punches (10) to be used and their corresponding dies can be done in the same manner by rotation. from the striker (9) to the corresponding angular position, holding the supports (13 and 14) punches and fixed dies according to the selection mode represented by the sequence of Figs.
  • each of said devices (15 and 16) consists of a motor (17) which, by virtue of a pulley (44) and a belt transmission (18), actuates the pulley (45) of a rotary body (19) which , via a pinion (46), meshes with a pinion (20), through which it is possible to establish a meshing coupling with the punch holder (13) or the holder matrices (14) corresponding.
  • the rotating body (19), with its pulley (45) and its pinion (46), as well as the pinion (20), are incorporated in a support (21) arranged in a rocking arrangement with respect to an axis (22) mounted in a "U" -shaped piece (47), so that, depending on the arrangement of said tilting support (21), the pinion (20) remains coupled or uncoupled with respect to its engagement with the punch holder (13) or the corresponding die carrier (14).
  • a linear pusher device (23) provides the thrust necessary to tilt said support (21) relative to the U-shaped piece (47) to the meshing position of the pinion (20) with the punch holder (13) or the corresponding die holder (14), as illustrated in FIG. 3, whereas, when said push-piece (23) is withdrawn, the support (21) switches in a position in which the pinion (20) remains decoupled from the engagement with the punch holder (13) or the respective die holder (14), as illustrated in Figure 2, in a gyro-type arrangement.
  • the pusher (23) may be a linear actuated pneumatic cylinder or other cam type mechanism or the like.
  • the tilting of the support (21) with respect to the axis (22) makes it possible for the decoupling position to be a position that the support (21) will reach by simple gravity, so that it is possible to use a linear pusher (23) simple effect which, once its pushing action ceases, rises in its non-operative position by gravity tilting of the support (21), facilitated in all cases by any resilient means of recovery, so as to ensure and in any case the decoupling of the pinion (20).
  • punch holders (13) and die holders (14) For the selection of punches and dies, punch holders (13) and die holders (14) must be controlled from a reference position or "zero" position, said punch holders (13) and die holders ( 14) having a locking device for fixing the reference position or "zero" position.
  • the locking device is defined by a ball (24) pushed by a spring (25) to define a kind of trigger that can fit into a notch (26) to fix in a concrete position the movable portion (27) of the punch holder (13) or the die carrier (14), as shown in FIG.
  • the machine For holding and driving the sheets (28) on which punching is carried out, the machine has claws (29) whose number may vary according to the dimensions of the sheets (28) for which the application is intended, said claws (29) being provided with a clamp (30) for grasping the sheets (28).
  • the claws (29) are mounted on a carriage (31) capable of moving according to "X" (horizontal movements) to drive the plates (28) and place them in the punching positions to be performed.
  • the claws (29) are slidably mounted on the carriage (31) relative to a guide (32), as shown in Figures 16 and 18, so as to move said claws (29) and place them in the proper position on said carriage (31), as shown in Figures 14 and 15.
  • This carriage (31) moving according to "X” is mounted on a carriage, not illustrated, capable of moving according to "Y" (movement in the vertical direction) so that the combination of movements of the two carriages allows to position punching sheet as appropriate for each job.
  • the claws (29) have a locking mechanism on the mounting guide (32), said mechanism comprising, as shown in Figures 16 to 19, a pressure element (33) coming from press on the guide (32), on which acts a push element (34) arranged in threaded mounting so that, during its rotation, it moves axially a small distance, said element (34) being secured a toothed sector (35) which meshes with a pinion (36) incorporated on a shaft (37) provided with a grooved head (38) with respect to which it can couple and decouple a rotary actuator element (39) .
  • the actuator element (39) can move axially through a cylinder (not shown) and is connected, via a radial rod (40), to a cylinder (41) perpendicular action whose actuation causes said element (39) in rotation.
  • the corresponding cylinder causes the axial displacement of the element (39) to couple said element (39) to the head (38) of the axis (37) and, once the element (39) in this position, the corresponding transverse cylinder (41) drives this element (39) in rotation, which in turn drives the axis (37) in rotation, for thus rotate the pusher (34) through the pinion (36) and the toothed sector (35).

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Punching Or Piercing (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)

Claims (6)

  1. Stanzmaschine mit:
    - übereinander angeordneten drehbaren Revolverköpfen (1 und 2), in die Stempelhaltersätze (13) und Matrizenhaltersätze (14) eingesetzt sind, die eine Vielzahl von Stempeln und Matrizen umfassen, die bezüglich der Position eines Betätigungsschlagbolzens (9) durch Drehen der Sätze (13 und 14) ausgewählt werden können,
    - Stellvorrichtungen (15 und 16), die jeweils die Position der Stempelhaltersätze (13) und der Matrizenhaltersätze (14) einstellen, wobei jede der Stellvorrichtungen ein Antriebselement (17) umfasst, das die Drehung eines in einer Halterung (21) drehbar gelagerten Körpers (19) bewirkt, wobei die Halterung (21) in einem U-förmigen Teil (47) um eine Achse (22) herum drehbar gelagert ist, wobei der Körper (19) ein Ritzel (20) antreibt, wobei das Ritzel (20) durch Betätigung eines Stößels (23) bezüglich des Stempelhalter- (13) bzw. des Matrizenhaltersatzes (14) durch Verzahnung ankuppelbar und abkuppelbar ist,
    bei der der Stößel in dem U-förmigen Teil eine aus dem Körper (19), der drehbaren Halterung (21) und dem Ritzel (20) bestehende Einheit um die Achse (22) des U-förmigen Teils herum zum Schwenken bringt,
    bei der die Achse (22) des U-förmigen Teils mit der Drehachse des Körpers (19) koplanar ist, und
    bei der die Achse (22) des U-förmigen Teils den drehbaren Körper (19) durchquert.
  2. Stanzmaschine nach dem vorhergehenden Anspruch,
    dadurch gekennzeichnet, dass das Antriebselement (17) die Drehung des Körpers (19) durch einen Riemenantrieb (18) überträgt, der in der abgekuppelten Stellung ungespannt bleibt, der sich beim Schwenken der Halterung (21) in die angekuppelte Stellung jedoch spannt und hierbei somit die Übertragung ausführt.
  3. Stanzmaschine nach Anspruch 1,
    dadurch gekennzeichnet, dass der Betätigungsschlagbolzens (9) mit einem Zahnkranz (43) drehfest verbunden ist, der über einen Riemenantrieb (11) an eine Antriebsscheibe (42) eines Motors (12) angekuppelt bleibt, deren Drehung in eine Drehung des Schlagbolzens (9) übergeht.
  4. Stanzmaschine nach Anspruch 1,
    dadurch gekennzeichnet, dass die Stempelhalter- (13) und Matrizenhaltersätze eine Vorrichtung zur vorübergehenden Arretierung umfassen, die von einer Kugel (24) gebildet ist, welche von einer Feder (25) geschoben wird, um in eine Aussparung (26) eingefügt zu werden, wodurch auf diese Weise die Sätze (13 und 14) zum Auswählen der Arbeitsstempel und -matrizen in einer Referenzposition oder Null-Position fixiert werden.
  5. Stanzmaschine nach Anspruch 1,
    dadurch gekennzeichnet, dass die Greifer (29) zum Erfassen der zu bearbeitenden Bleche (28) in einem beweglichen Trägerschlitten (31) eingesetzt sind, bezüglich dem die Greifer (29) in einer Führung (32) gleitend lagernd eingefügt sind, wobei die Greifer einen Arretiermechanismus umfassen, mit einem auf die Führung (32) Druck ausübenden Element (33), auf das ein axial bewegbares gewindetes Schubelement (34) einwirkt, das über ein Zahnsegment (35) und ein Ritzel (36) mit einer Achse (37) verbunden ist, die durch einen axial beweglichen Drehsteller (39) zum Ankuppeln und Abkuppeln bezüglich dieser Achse (37) in Bewegung versetzt zu werden vermag.
  6. Stanzmaschine nach Anspruch 1,
    dadurch gekennzeichnet, dass die Revolverköpfe (1 und 2) bezüglich einander in exzentrischer Stellung solchermaßen übereinander angeordnet sind, dass sie sich in dem Arbeitsbereich (5), in dem die Stanzvorgänge durchgeführt werden, einander gegenüberliegen, in dem abgewandten Bereich (6) der untere Revolverkopf (2) jedoch bezüglich des oberen Revolverkopfs (1) frei liegt, um somit das Auswechseln der Matrizen zu erleichtern.
EP05076041A 2004-05-12 2005-05-04 Stanzmaschine Not-in-force EP1595614B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES200401138 2004-05-12
ES200401138A ES2246697B1 (es) 2004-05-12 2004-05-12 Mejoras introducidas en una maquina punzonadora.

Publications (2)

Publication Number Publication Date
EP1595614A1 EP1595614A1 (de) 2005-11-16
EP1595614B1 true EP1595614B1 (de) 2007-10-03

Family

ID=34938241

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05076041A Not-in-force EP1595614B1 (de) 2004-05-12 2005-05-04 Stanzmaschine

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EP (1) EP1595614B1 (de)
AT (1) ATE374657T1 (de)
DE (1) DE602005002676T2 (de)
ES (1) ES2246697B1 (de)
PT (1) PT1595614E (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMI20091430A1 (it) * 2009-08-06 2011-02-06 Cimsa Srl Macchina punzonatrice perfezionata
DE102017215422A1 (de) 2017-09-04 2019-03-07 Pass Stanztechnik Ag Mehrfachwerkzeug
CN116603924B (zh) * 2023-06-06 2023-11-03 台励富精密机械(江苏)有限公司 一种具有定位功能的机械加工用冲孔机

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8702211U1 (de) * 1987-01-23 1987-04-02 C. Behrens Ag, 3220 Alfeld Blechbearbeitungsmaschine mit Werkzeugmagazin
DE8717398U1 (de) * 1987-06-24 1988-04-21 C. Behrens Ag, 3220 Alfeld Revolverschneidpresse
US5062337A (en) * 1989-05-12 1991-11-05 Strippit, Inc. Indexable multi-tool for punch press
IT1257758B (it) * 1992-03-10 1996-02-13 Rainer Srl Macchina punzonatrice
US5522295A (en) * 1994-03-04 1996-06-04 Murata Machinery, Ltd. Rear address punch with turret frame
US5528968A (en) * 1994-04-14 1996-06-25 Murata Machinery, Ltd. Punch press with automated sheet rotation
DE19628074A1 (de) * 1996-07-12 1998-01-29 Behrens Ag C Revolverschneidpresse
IT1293258B1 (it) * 1997-07-22 1999-02-16 Rainer Srl Macchina per la lavorazione di lamiere.
GB2360727B (en) * 2000-03-30 2004-02-04 Tradewise Engineering Ltd Modular unit for converting punching machines from single-punch to multiple-punch

Also Published As

Publication number Publication date
ES2246697B1 (es) 2006-12-01
PT1595614E (pt) 2008-01-11
EP1595614A1 (de) 2005-11-16
DE602005002676D1 (de) 2007-11-15
DE602005002676T2 (de) 2008-07-24
ES2246697A1 (es) 2006-02-16
ATE374657T1 (de) 2007-10-15

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